The Pulley,groove, cataloged under National Stock Number 3020-01-077-4411, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-077-4411 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | DRILLED HOLE |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.060 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Unable to Decode | UNABLE TO DECODE |
| Web/spoke Relationship to Face Centerline | OFFSET |
| First Step Face Largest Diameter and Location | 6.750 INCHES NOMINAL AA END IN |
| Groove Shape | V |
| Outside Diameter | 10.200 INCHES NOMINAL IN |
| Distance From Outside Flange/rim to Hub End and Location | 0.815 INCHES NOMINAL AA END IN |
| Second Step Length | 0.130 INCHES NOMINAL AA END IN |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 0.560 INCHES NOMINAL IN |
| Bore Type | TAPERED |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| Taper Bore Major Diameter | 0.750 INCHES NOMINAL IN |
| V Groove Angle in Deg | 18.0 |
| Protruding Hub Characteristic | STEPPED |
| Unable to Decode | UNABLE TO DECODE |
| First Step Length | 0.245 INCHES NOMINAL AA END IN |
| Securing Hole Quantity | 6 |
| Bolt Circle Diameter | 2.750 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.656 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.815 INCHES NOMINAL AA END AND 1.120 INCHES NOMINAL BB END IN |
| Hole Location | THROUGH PULLEY BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 211918 | 3/9 Design control — primary reference Cummins Inc. |
NSN 3020-01-077-4411 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-077-4411: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: DRILLED HOLE; Split Hub Feature: NOT INCLUDED. 29 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.